Adaptor plate for attaching outboard motors to motor support brackets



FIG. 1 is a perspective view of an adaptor plate for attaching outboard motors to motor support brackets showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof; and

FIG. 6 is a rear elevational view thereof. 

The ornamental design for an adaptor plate for attaching outboard motors to motor support brackets, as shown. 